Gasolene or gas engine.



Patented Oct. 3! I899.

5.1+. KORSMEYER.

GASOLENE 0R GAS ENGINE.

(Application filed. Nov. 18, 1896.1

2 Sheets$heet I.

(No Model.)

ma uonms pzrzns 00.. PHOTO-LKTHQ. WASHINGTON, a av Patented Oct. 3|, I899.

2 Sheets8heet 2,

27/7/ 2 it/Ill E. H. KORSMEYER.

GASDLENE 0R GAS ENGINE.

(Application filed Nov. 18, 1896.)

016' Model.)

m: Noam: vz'rsns co" mom-U150" WASHKNGTON, 'n. c.

1 H m H II UNITED STATES PATENT ERNST. l-I. KORSMEYER, OF HIGGINSVILLE, MISSOURI, ASSIGNOR OF ONE-HALF TO FRITZ LANGKRAHR, OF SAME PLACE.

GASOLENE OR GAS ENGINE.

SPECIFICATION forming part of Letters Patent No. 636,048, dated October 31, 1899.

Application filed November 18, 1896. Serial 6 .576- (N mod To all whom it may concern:

Be it known that I, ERNST H. KORSMEYER, a citizen of the United States, and a resident of Higginsville, in the State of Missourhhave invented certain new and useful Improvements in Gasolene or Gas Engines, of which I do declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

The present invention has for its object to provide a simple, cheap, durable, and effective construction of gasolene or gas engine; and with this object in View the invention is directed more especially to the following points, viz: first, to the provision of a long cylinder having pistons at its opposite ends, said pistons being connected to cranks upon a common drive-shaft; second, to an improvement of the water-jacket for said cylinder, and, third, to the improvement of the valve mechanism whereby the supply of fuel to the engine is effected.

The invention consists in the various novel features of construction hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the claims at the end of this specification.

Figure l is a view in vertical longitudinal section through a gasolene-engine embodying my invention. Fig. 2 is a plan view of one end of the cylinder of the engine and adjacent parts. Fig. 3 is a view in vertical section through the center of the cylinder and subjacent parts. Fig. 4 is a view in vertical section through the valve mechanism beneath the main cylinder. Fig. 5 is'a view in horizontal section on line 5 5 of Fig. 4. Fig 6 is a View in horizontal section on line 6 6 of Fig. 4:.

A designates the base or bed of the machine,

that is provided with suitable standards a, in which is journaled the crank-shaft B, that is provided with oppositely disposed cranks that are connected with the pistons at the opposite ends of the cylinder. Upon the bed A is also sustained the cylinder 0, that car'- ries at its opposite ends the pistons or trunks D and D. The piston D has pivotally connected thereto, as at cl, a connecting-rod E,

the opposite end of which rod is united to the central crank of the crank-shaft B. The trunk or piston D haspivotally connected thereto, as at d, the central arm f of the frame F, the side arms f of this frame F being provided with holes, through which pass the rods G, that connect the frame F with the outside cranks of the shaft B. The outer ends of the rods G are threaded, as at g, and pass through holes in the frame F, suitable nuts g being employed to unite the outer ends of the rods G to the frame F.

The cylinder 0 is preferably formed as a single casting, and upon the outside of the central portion of this cylinder is cast a pcripheral extension O, that is formed with the segmentalopen-endedcompartmentsc. (See Fig. The periphery of the cylinder O is also formed with the annular flanges c and c and over the outside of the cylinder 0 fit the sections 0 and O of the water-jacket. The section 0 of the water-jacket has at one end an inwardly-extending flange 0 that is bolted to the outwardly-extending annular flange c of the cylinder, and the end of the water-jacket section 0 is formed with an inwardly-extendingannular flange c ,that is bolted to the flange c of the cylinder. The inner ends of the water-jacket sections 0 and G bear against the central portion O of the cylinder 0 and are held in firm contact therewith by means of the bolts whereby the water-jacket sections O and O are united to the cylinder. It will be observed that the annular spaces between the water-jacket sections O and O and the cylinder 0 communicate with each other through the segmental chambers 0, so that an effective cooling of the cylinder will be had, water being admitted, preferably, through an inlet in the top of the section O and being discharged through an outlet-pipe at the bottom of section C The water-jacket section 0 is shown as formed with lateral flanges 0 (see Fig. 2,) that will be bolted to the top of the bed or base A, and thus serve to hold the parts rigidly in position.

In the under side of the cylinder O is formed the admission and exhaust port h, and this port or passage h, as clearly shown by Figs. 1, 3, and 4E, communicates with the interior of the valve easing or support H, that is bolted, as at h, (see Fig. 3,) to the under side of the cylinder-section O. The valve casingorsupport II has an opening formed in its side, through which opening passes the seat-easing K of the exhaust-valve K. The seat-casing K has its reduced cylindrical portion 7t extending to a considerable distance within the chambered valve-casing H, and the seat-casing K is furnished with an enlarged portion 7;, that bears against the side of the Valvecasing H and is provided with flanges 76*, through which pass the bolts 75", (see Fig. 1,) that engage corresponding flanges h on the valve-casing II and securely retain the seatcasing K in position. The valve-seat casing K is provided at one side with an exhaustport K and through the casing K extends the stem 7; of the exhaust-valve K", this val vestem passing through an elongated bearing in the end of the casing K and being encircled by a strong coil-spring K the outer end of which spring bears against a washer 5, the position of which washer may be adjusted by means of a nut 6 upon the threaded end of the valve-stem 7; in order to vary the tension of the spring K In the under side of the valve casing or support H is formed an opening to receive the reduced portion m of the casing M, (see Figs. 3 and 4,) the upper portion of this casing M being formed with a seat for the valve M, the stem m of which extends downward through an elongated bearing and is encircled by a weak coil-spring ll that serves to hold the valve M normally against its seat. The tension of the spring M can be varied by means of a nut m upon the end of the valve-stem m, this nut serving to shift the washer m against which the lower end of the coil-spring m bears. The valve-seat casing M is connected by bolts 8 with flanges 9 and 10, that project, respectively, from the bottom of the valve casing or support H and from the seatcasing M. (See Fig. In one side of the seat-casing M is formed a port or, that communicates with the interior of the mixer-casing P, (see Fig. 4,) that is attached to the valve casing or support If by bolts 12, that pass through flanges projecting, respectively, from the valve casing or support H and the mixer-casing P. (See Fig. 1.) The bottom of the mixer-casing P is formed with a downward extension P, thatis provided with a series of perforations 1), through which the supply of air will be admitted from a circular chamber R, that surrounds the extension P of the mixer-casing P and receives the airsupply through the lateral opening 0. ithin the interior of the mixer-casing P is the spreader-hood S, preferably of conical shape and formed of wire-gauze or like material, adapted to diffuse the gasolene and effect a better exposure of the same to the supply of air. The spreader-hood S is connected to the valve T,the upper end of which passes through the top of the mixer-casing,while its lower conical end rests upon the upper end of the oilvalve seat U, through which the gasolene will be supplied by apipe V, communicating with a suitable reservoir. The valve-seat U is of annular shape and is provided with a screwthreaded portion a to engage the correspondin gly screw-threaded lower part of the extension P of the mixer-casing, as clearly shown in Fig. 4, and the valve-seat U is provided with an exterior flange u, that projects beneath the air-supply chamber R and serves to securely retain this chamber in position. Preferably the mixer-chamber 1 is provided with a vertical transverse wall 12 in order to insure a more thorough admixture of the air and oil and to insure also a greater exposure of the mixed air and oil or vapor to the hot wall of the valve casing or support H, as will presently more fully appear. By reference to Fig. 1 of the drawings it will be seen that the stem k of the exhaust-valve K projects through a cut-away space a, formed in the base or bed A, and through the side walls of the bed or base A extends a rock-shaft of, that carries an arm 0, adapted at the proper time to contact with the stem k of the exhaust-valve and force this valve from its seat in order to permit the escape of burned gases after the explosion within the cylinder has occurred. Upon the outer end of the rockshaft a is attached an arm a (shown by dotted lines in Fig. 1,) this arm being actuated in the usual manner for controlling the exhaust;

From the foregoing description the operation will be seen to be as follows: If it be assumed that the pistons D and D are at the I extreme of their inward stroke or as close together as they come, then as they move outward toward the position shown in Fig. 1 air will be drawn through the air-supply pipe R and will pass through the perforation 1) and up into the mixing-chamber P, and as the air is thus drawn into the mixing-chamber the spreader-hood S will be raised slightly, thereby lifting the oil-supply valve T from its seat and permitting a portion of oil to pass into the bottom of the mixing-chamber. The mixed oil and air will be drawn through the spreader-hood S, and thence over the transverse plate and thence downward along the hot wall of the valve casing or support H and into the ports m of the seat-casing M, the valve M having been lifted from its seat, and the mixed supply of air and oil or vapor will pass upward through the valve casing or support H and through the port h into the cylinder 0 until the trunks or pistons D D are at the extreme of their outward movement. The trunks or pistons D D will then move inward, thereby compressing the mixed air and oil, and when about the extreme of their inward stroke the explosion of the mixture within the cylinder 0 will be effected, thereby forcing the trunks or pistons D D outward to the position seen in Fig. 1 of the drawings. It will be understood, of course, that during this second outward movement of the trunks or pistons D and D the exhaust-valve K and the valve M will be closed. When, however, the trunks or pistons D D reach the limit of their outward movement and begin to reverse, the lever-arm a on the rock-shaft a will contact with the valve-stem k and force the exhaust-valve K from off its seat, thereby permitting the burned gases to escape from the cylinder 0. It will be understood, of course, that the explosion of the mixed air and gas or oil occurs only at each second revolution of the crank-shaft.

Having tlfus described the invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a gasolene or gas engine the combination of a cylinder open at its ends and provided centrally with an admission and exhaust port, pistons or trunks in the opposite ends of said cylinder, a crank-shaft provided with oppositely-disposed cranks, a rod leading from-said crank-shaft to the inner one of said trunks or pistons, two rods leading from said crank-shaft to the outer one of said trunks or pistons and a swinging frame or cross-head having its outer ends rigidly secured to said two rods, said frame or crosshead being provided also with a central arm or extension pivotally connected at its inner end to said outer trunk or piston whereby said cross-head is caused to swing in unison with the rods connected thereto and serves to maintain said rods centrally in line with the outer piston at any position of the crank-shaft.

2. In a gasolene or gas engine the combination with a cylinder open at its ends and provided centrally with an admission and an exhaust port, pistons and trunks in the opposite ends of said cylinder, a crank-shaft provided with oppositely-disposed cranks, a rod leading from said crank-shaft to the inner one of said trunks or pistons, two rods leading from said crank-shaft to the outer one of said trunks or pistons and a swinging frame or cross-head formed with lateral extending arms having openings therein to receive the outer ends of said rods and formed with a central inwardly-extending arm pivotally connected to said outer piston, said swinging frame being provided also at its outer ends with side arms f extending toward the crankshaft and provided with openings through which said rods pass, said swinging frame or cross-head being rigidly secured to said rods and serving to maintain the same centrally in line with said outer piston at any position with the crank-shaft.

3. In a gasolene or gas engine, the combination of a cylinder having upon its exterior a central peripheral chambered casting integral therewith and individual water-jackets formed separate from said casting and attached to said cylinder upon opposite sides of said central casting, substantially as described.

4. In a gasolene or gas engine the combination of a cylinder 0 having the central peripheral chambered casting C integral therewith and the ribs 0 and c and the separate water-jackets O and 0 having open inner ends engaging opposite sides of said chambered casting and provided respectively at their ends with exterior ribs 0 and c bolted to said flanges c and c of the cylinder, substantially as described.

5. In a gasolene or gas engine, the combination with the cylinder, of a valve-seat casing or support provided with suitable valves and a mixing-chamber P attached to said valveseat casing and communicating therewith at 7 its bottom, said mixing-chamber being pro vided with one or more openings at its lower end for the admission of oil and air and being provided with a transverse Wall or divi= sion-plate p terminating beneath the top of the mixing-chamber and arranged at a slight distance from the valve-casing whereby the mixed oil and air are caused to pass up through the mixing-chamber and down against the valve-casing, substantially as described.

6. In a gasolene or gas engine, the combina tion with the cylinder, of. a valve casing 01 support having a port for the admission of mixed oil and air and a mixing-chamber P provided at its bottom with a port or channel for the admission of oil and provided with ports around said oil-admission port for the admission of air, and a perforate hood S ex tending upward from the bottom of said mixing-chamber and a valve T arranged within said hood and adapted to control the admis= sion of oil, substantially as described.

7. In a gasolene or gas engine, the combina tion with the cylinder, of a valve casing or support having an opening for the admission of mixed oil and air, a mixing-chamber P pro vided at its bottom with an extension P having perforations therein and an annular air pipe R encircling said extension P, an oil= valve seat U located within said extension P, a valveT resting upon said oil-valve seat and a perforate hood S encircling said valve T, substantially as described.

8. In a gasolene or gas engine, the combina tion with the cylinder, of a valve casing or support having a port to admit mixed air and oil, a mixing-chamber P provided at its bottom with an extension P having perforations therethrough, an annular air-chamber R surrounding said extension P and an oil-valve seat U extending into the bottom of the extension P and serving to retain said air-chamber R in place, substantially as described.

ERNST H. KORSMEYER.

Witnesses:

FRITZ LANGKRAHR, WM. HOEFER.

too 

